I've been using the beersmith app but can't seem to get it set up properly. I've uploaded a few screenshots and I'm hoping someone can help me out.

On my mash profile, I've said to add 55 litres of infusion water (as this is the amount of water I start with). I normally sparge with 9 litres or so but I don't think I've added that anywhere on beersmith. But the app has calculated my pre boil volume as 53.88 litres, which is also about right. On my equipment profile, I've got my final batch volume as 45 litres, which is what I usually get after boiling.

But then if you look at my brewday timer, it says to start with 121.65 litres of water and to sparge with -54.75 litres which is obviously wrong.